positiveとは

意味・読み方・使い方

語源

From Old French positif, from Latin positivus, from the past participle stem of ponere (“to place”). Compare posit.

発音

• (Received 発音) IPA^(key): /ˈpɒzɪ̈tɪv/
• (General American) enPR: pŏzʹĭ-tĭv, IPA^(key): /ˈpɑzɪ̈tɪv/
• 韻: -ɒzɪtɪv
• ハイフネーション (英国発音): pos‧it‧ive, (米国発音): pos‧i‧tive

形容詞

positive (comparative more positive, superlative most positive)

1. Not negative or neutral.
2. (law) Formally laid down. [from the 14th c.]
   • 1594, Richard Hooker, Of the Lawes of Ecclesiastical Politie

     In laws, that which is natural bindeth universally; that which is positive, not so.

3. Stated definitively and without qualification. [from the 16th c.]
   • 1622, Francis, Lord Verulam, Viscount St. Alban [i.e. Francis Bacon], The Historie of the Raigne of King Henry the Seventh, […], London: […] W[illiam] Stansby for Matthew Lownes, and William Barret, OCLC 1086746628:

     Positive words, that he would not bear arms against King Edward’s son.

4. Fully assured in opinion. [from the 17th c.]

   I’m absolutely positive you've spelt that wrong.

5. (mathematics) Of number, greater than zero. [from the 18th c.]

   Antonym: nonpositive

6. Characterized by constructiveness or influence for the better.
   • 1701, Jonathan Swift, A Discourse of the Contests and Dissensions between the Nobles and the Commons in Athens and Rome

     unless another law shall at the same time pass, with no other view but that of advancing the power of one party alone; what is this but to claim a positive voice, as well as a negative?

7. Overconfident, dogmatic.
   • 1709, [Alexander Pope], An Essay on Criticism, London: Printed for W. Lewis […], published 1711, OCLC 15810849:

     Some positive, persisting fops we know, That, if once wrong, will needs be always so.

8. (chiefly philosophy) Actual, real, concrete, not theoretical or speculative.
   • 1597 Francis Bacon, The Colours of Good and Evil

     The flower or blossom is a a positive good.

9. (physics) Having more protons than electrons.

   A cation is a positive ion as it has more protons than electrons.

   Antonym: negative

10. (grammar) Describing the primary sense of an adjective, adverb or noun; not comparative, superlative, augmentative nor diminutive.

    ‘Better’ is an irregular comparative of the positive form ‘good’.

11. Derived from an object by itself; not dependent on changing circumstances or relations; absolute.

    The idea of beauty is not positive, but depends on the different tastes of individuals.

12. Characterized by the existence or presence of distinguishing qualities or features, rather than by their absence.

    The box was not empty – I felt some positive substance within it.

14. Characterized by the presence of features which support a hypothesis.

    The results of our experiment are positive.

15. (photography) Of a visual image, true to the original in light, shade and colour values.

    A positive photograph can be developed from a photographic negative.

16. Favorable, desirable by those interested or invested in that which is being judged.

    The first-night reviews were largely positive.

17. Wholly what is expressed; colloquially downright, entire, outright.

    Good lord, you've built up a positive arsenal of weaponry here.

18. Optimistic. [from the 20th c.]

    He has a positive outlook on life.

19. (chemistry) electropositive
20. (chemistry) basic; metallic; not acid; opposed to negative, and said of metals, bases, and basic radicals.
21. (slang) HIV positive.
    • quoted in 2013, William I. Johnston, HIV-Negative: How the Uninfected Are Affected by AIDS (page 145)

      We certainly told him at that time that I was negative. We talked about transmission. We told him we don't do anything that would cause me to become positive.

22. (New Age jargon) Good, desirable, healthful, pleasant, enjoyable; (often precedes 'energy', 'thought', 'feeling' または 'emotion').
    • 2009, Christopher Johns, Becoming a Reflective Practitioner, John Wiley & Sons, p. 15

      Negative feelings can be worked through and their energy converted into positive energy... In crisis, normal patterns of self-organization fail, resulting in anxiety (negative energy). Being open systems, people can exchange this energy with the environment and create positive energy for taking action...

同意語

• (steadfast in one's knowledge または belief): certain, sure, wis

反意語

• (doubtful): uncertain, unsure
• (spiritual quality): bad, evil, nongood

派生語

名詞

positive (複数形 positives)

1. A thing capable of being affirmed; something real or actual.

   (Can we find かつ add a quotation of South to this entry?)

2. A favourable point or characteristic.
3. Something having a positive value in physics, such as an electric charge.
4. (grammar) A degree of comparison of adjectives and adverbs.
5. (grammar) An adjective or adverb in the positive degree.
6. (photography) A positive image; one that displays true colors and shades, as opposed to a negative.
7. The positive plate of a voltaic or electrolytic cell.
8. A positive result of a test.